Melting-pot.



C. A. FRASER L E. Ni. HENRYx Mamma P01. APPLICATION FILED OCT. 19| 191G- C. A. FRASER I F. Nl. HENRY.

MELTING POT.

APPLICATION FILED 00T. I9. 1916.

vPaten-@II May I5, 1917 4 2 SHEETS-SHEET 2.

` To al," 'wfwfm it may Crmw'm.

f lling A. AN?) FRANK M. HEME?? impl-cation lel. @amber 19 it known 'that wa, CHARLES A.. FRASER and ,FRANK M, 'Hmmm ci mens of lh@ llulel Simms? sdng at Minneapolis, in tlwcGunt-y 01"' Hennepin Slate of l/liunesom., have invente/fl certain new and useful ll'm'me-- invention felates *30 certain naw and useal mpm/eimen'lzfs in melting pots im type casting or type setng; machines anal it has foi' its objscs among nher@ $0 pmve a simple nml cheap, yet ecenl; and liable means fdr an'mmtically eefingj mollen metal to the mggulzu' melting pot.

it has for a furtlwr object te prfwfle a device wllsll shall elmnale all time of the operator 111 the @are of feeamg Ehe .mac-hm@ Wijn molten metal` and to kefap the metal pol; in casting nmol lil-ee of ross and all di't, thus insuring. @more pa? fecislug; or cast line.

E has for a furthe? olajct "'50 flu Wh fue Gf le-casting lle use@ linotypa'slugfs into pigs, @Ewing a cfmsclezrale saving in lahm? and metal.

ll; has for a. furthe? object to make easier to kaap :m @van tempeatme of metal in casting poll? as the lat/ar will mmf, st-anly suplefl Willi. hoi; metal 0:55 cold. metall as has been the practice ller/5m -mezml within the l.

, lfnm' UlJjQCS anal mlmntages 0f im venon will lleeiuail'mr appa-M' and lle novel fauies lll/melf will be particularly pond out in th@ appended claims.

The nventml is clealy llustm'eal in th@ 6@ accompanying drm/ving@ which, with he numerals of referme@ ma-llecl thereon, :fawn a. parl: of this specification, and iin which Figur@ l is LL top plan with parts in lion Fig. 2 is a sectien on the line 2 1, looking in diec'cn of the with pmorm lfsfoln :may amd u elevation.

Fig. a secior; 011 th@ lime 3-3 of 2? looking in 'lle cllectml of the mmw Fig. is an anlzugfl detail showing in@ znimllsl 'which cnnrols tha vali/'ra E; a View at ligll angles o Fig. il.. Like mlmefals off reference mlcate like partis hroughouq the Several views,

Referring "no the flmwngs,

1 clesgnn s a lnotype pot 'which may of lle usual construction Wtll, the ouler. 3 is a, Hout, preferably a hollow brass Haat, adapt/afl to los supported upon thu molten This Tloat is cmlefl by a, mal 01' stem llas Saum Glm'ly in l? 5 is im auxiliary maltxg poi: suppmled w adjacent llo lille muli/l5, melting pot i nml provided with dischae outlet l conlollefl by uV v "A 7 mbcl o a` sama 8., ses' in. Qing al; l1@ ooom the amil. dscl" opellg below the no?. s'sl pmb l;

The pol; u eline/6, 11" warflly mi. oumax a mitting removal of the pot 5 when necessary for cleaning or other purposes. These doors are shown as hinged at 19 and 2O respectively, but it is evident that they may be made otherwise removable.

The bottom 21 upon which thc pot 5 is supported by means of the depending tubular extension through which t-he outlet 6' 2-l is a vent from the casing 15, as shown best in Fig.

The valve 17 is provided with a stem 25 connected therewith in any suitable manner, as seen at 2G, and at its upper end loosely' connected with a rod 27, in the present instance the upper end of the valve stem being shown as provided with a lateral extension 28 loosely received within an eye 29 on the lower end of the rod 27.

Secured to the outer wall of the casing 15 is an upright 3() on which is pivotally mounted, as at 31, a horizontally disposed arm 32, the opposite ends of which are loosely connected with the rods 4 and 27, as at 33 and 34- respeetively. While any suitable form of connection between this cross arm 32 and the rods Je and 27 may be em ployed, that shown in Figs. 2 and et has been found to be eliicient. Provision is made for adjustment ot the valve and float by means of the nuts 35 and 3G on the rods l and 27 respectively. These nuts also serve to held the ends of the cross bar 32 against displacement.

The baille plate illis provided near the lower end thereof with the holes 37, as seen best in Fig. 3, for the flow of the molten metal from the main body of the pot 5 through the discharge opening G when the valve 7 is lapen and through the discharge pipe 9 into the pot l.

The cross arm 32 is provided with an upright naember 38 in the upper end of which is a V-shaped notch 39 in which engages the point of a pendent swinging member 40 pivotally mounted, as at 4:1. As seen best in Fig. 5, the upright 30 is divided or composed of parallel spaced members between which the arm 32 and its upright portion 3S are mounted.

The upper end of the spaced members of. the upright 30 are connected7 as by the cross member l2, in which is threaded a member 4;.2 through which is guided a stem 43 with e justed position;

screw provides for adjustment of the tension of the spring and a pivot 4:1 of the swinging member Ll-O is disposed in vertical slots 47 in the opposite side bars of the up right 30 and is controlled by the pressure of said spring. The swinging member 40 is designed to give quick snappy action to the valve The holes 37 in the battle plate near the lower end thereof are for straining the type metal before it passes through e valve.

In practice, it is to be understood that thF vent or smoke pipe 24: may be connecten with a chimney or lead to the atmosphere and the parts are assembled substantially as shown in Fig. Any form of burner may be employed beneath the pot 5, preferably some suitable form of gas burner with a simnierer and pilot light of well-known construction and for an obvious purpose. The metal is supplied to the pot 5 by opening the door 17, the upwardly and outwardly inclined surface 10 of the inner wall of the pot facilitating the same. The tloat 3 rests upon the molten metal in the pot 1 and as the height of this me'tal varies from usage the float falling pulls down upon the rod 4 and upward upon the rod 27, automatically lifting the valve 7 from its seat so that molten metal is automatically supplied to the pot 1. vWhen the metal in the pot 1 reaches a predetermined level, the float rises and automatically closes the valve, thus shutting olf the iiow of the molten metal from the pot 5 to the pot 1. By this means We enabled to keep practically an even vamount of pure metal in the active pot 1 no matter how fast or slow the operator may be and no matter what size of slug is being cast, for the instant the metal in the pot 1 lowers enough to actuate the brass tloat in said pot, the valve in the auxiliary pot is automatically opened and releases molten metal to take the place of the metal used from the pot 1 so as to fill the latter back to its original quantity when the valve is automatically closed. The spring i6 bearing on the cam 40 gives sufficient pressure to cause the cam to give a quick snappy aotion to the valve whether it be for its closing or opening movement.

Modifications in details may be resorted to without departing from the spirit of the in vention or sacrificing any of its advantages.

l/Vhat is claimed as new is 1. 1n a device of the character described, a melting pot, an auxiliary melting pot, heating means for the latter, a valve for controlling the flow from the auxiliary melting pot, a float, a rockingly mounted connection between the float and valve and a springpressed pivoted pendent member coperable with said rocking connection to actuate the latter to give aquick snappy action to the valve.

2. In a device of the character described,

.'a melting pot, an auxiliary melting pot, a

ing a discharge in its bottom and said baiie plate having openings near its lower end.

4. In a'device of the character described, a melting,Il pot, an auxiliary melting pot, a fioat in the former, a connected with the float and valve, a cross arm connected with said rods and pivotally mounted between its ends, an upright mem ber carried by the crossarm and having a notch, and a pendent swingingn member 'pivoted above the upright member and having an end engaged in said notch and actuated by the movement of the float to give a quick snappy action to the valve.

-iliary melting valve in the latter, rods 4 5. In a device of the character described, a melting pot, an auxiliary melting pot, a float in the former, a valve in the latter, connections between the valve and float to cause them to move in unison in' opposite directions, vand a spring-actuated pendent swinging member constructed and arranged to give to the valve a quick action upon movement of the float.

6. ln a device of the character described, a melting pot'and a float therein, an anxpot and va valve therein, connections between the valve and ioat to cause them to move in unison in opposite directions, a pendent swinging member engageable with a member of said connections, a spring acting on the pendent swinging member, and means for adjusting the tension of said spring.

ln testimony whereof we alix our signatures in the presence of two witnesses.

, CHARLES A. FRASER.

FRANK M. HENRY;

1f/"itnesees:

C. K. SPEARS, N. L. ERICsoN. 

